I got the implanon in Jan. Of 2012 so I have had it for 1 & 1/2 now. I had crazy periods (never on a schedule, long and heavy) up until Jan. Of this year(around my year mark) when they would come every month on the 12th and last 4 days. But this month it hasn't come, I am now 17 days late.. Is there any one who has had this happened to them? If so what can I expect next? No periods? Crazy ones? Possible pregnancy? I don't want to buy a pt because I don't want my husband to find out that I'm worrying that I'm pregnant. I know my chances are very slim but it also could be possible BC we have sex often and never protected. I never had this happen to me when I previously had the implanon. What's going on?